3" Magnum 20 (DC)
Backflow Direct's 3" Magnum 20 Double Check DC DCA Backflow Prevention Valve
 
Alternative Views:


The 3" Magnum 20 (DC) Double Check Backflow Valve prevents non-health hazard pollutants from entering a potable water supply system when backpressure and/or backsiphonage conditions occur. This product is designed for irrigation, plumbing, & some waterworks applications. The shut off valves do not include electronic alarm switches.

The smallest, lightest, most economical, best performing, and only all stainless steel backflow preventer. Period.

Approvals

Approved in the Horizontal & Vertical Up Orientation.
This Product is NOT UL or FM Approved

Important Note: Install with FLEX Couplings or Flange Adapters Only. DO NOT use RIDGED Couplings!

10% DISCOUNT ON MAGNUM ORDERS MORE THAN $5,000!

MSRP: $1,079.00
Pro Price: $869.00


Product Code: MAG-3020


Qty:
Specifications Technology Downloads
 

The Magnum 20(x) Double Check Backflow Prevention Valve Assembly is designed to prevent non-health hazard pollutants from entering the potable water supply system caused by backpressure and/or backsiphonage conditions. This product is designed for the waterwork, plumbing, and irrigation markets only.

Maximum Working Pressure:
175psi (12.1 bar)
Temperature Range:
33° - 140°F (1° - 60°C)
End Connections
- IPS Groove for Steel Pipe:
AWWA C606
- Flange Adapters:
ANSI B16.1 Class 125
Lead Free:
0.25% Maximum by Weight

Flow Performance

Measures & Materials

Valve Housing:
304 Stainless Steel
Valve Cover:
304 Stainless Steel
SOV Disks:
EPDM/304SS:
SOV Shafts:
304 Stainless Steel
SOV Bearings:
Teflon/Bronze
Non Wetted Bolts:
Grade 8 Zinc Plated
Check Disks:
Silicone
Wetted Fasteners:
18-8 Stainless Steel
Check Springs:
17-7 Stainless Steel
Check Pins:
17-7/18-8 Stainless Steel
Check Seats:
Noryl Polymer
O-Rings:
Buna-N

Engineering & Specifications

The Magnum 20(x) Double Check Valve shall utilize two independent Dual Action Check modules and two integral resiliently seated shut-off valves all of which shall be contained within a single rigid valve housing constructed entirely of 304 stainless steel. Dual Action Check modules shall operate as a “poppet style” check under low flow conditions, operate as a “swing style” check under high flow conditions and utilize replaceable silicone elastomer sealing discs. Assembly test cocks shall be handle-less and operate via a tamper resistant actuator. Assembly shall have a single full access service port and cover with an “inline” replaceable elastomer seal. Assembly shall be serviceable without special tools and approved for both horizontal and vertical applications.


Share your knowledge of this product. Be the first to write a review »